-
英语作文：
The Problem of Human
Population
it
has
been
estimated
that
a
thousand
years
ago
there
were
less
than
400
million
people
on
earth.
today,
however,
the
world's
population
has
amounted
to
5,000
million.
what
is worse,
it keeps growing at a surprising speed. if this
trend continues, the world's population
will shoot up to
7,000 million by the
year xx. this is what we call
population explosion.
the rapid development of science and technology is
the
main
cause
of
population
explosion.
we
can
see
that
the
population
has
been
growing
at
a
tremendous
speed
since
the
industrial and agriculture
revolution in 1650, which
raised the
people's standard of living, and the emergence
of modern medicine in 1550, which
lowered the people's
death
rate.
population explosion will result in a lot of such
problems as food shortage,
housing shortage and
unemployment.
it
is
time
that
we
acted
quickly
to
carry
out
the policy of
birth control otherwise, man's survival on
the earth will be
threatened.
第
1
页
/
总共
10
页
it
has
been
estimated
that
a
thousand
years
ago
there
were
less
than
400
million
people
on
earth.
today,
however,
the
world's
population
has
amounted
to
5,000
million.
what
is worse,
it keeps growing at a surprising speed. if this
trend continues, the world's population
will shoot up to
7,000 million by the
year xx. this is what we call
population explosion.
the rapid development of science and technology is
the
main
cause
of
population
explosion.
we
can
see
that
the
population
has
been
growing
at
a
tremendous
speed
since
the
industrial and agriculture
revolution in 1650, which
raised the
people's standard of living, and the emergence
of modern medicine in 1550, which
lowered the people's
death
rate.
population explosion will result in a lot of such
problems as food shortage,
housing shortage and
unemployment.
it
is
time
that
we
acted
quickly
to
carry
out
the policy of
birth control otherwise, man's survival on
the earth will be
threatened.
第
2
页
/
总共
10
页
it
has
been
estimated
that
a
thousand
years
ago
there
were
less
than
400
million
people
on
earth.
today,
however,
the
world's
population
has
amounted
to
5,000
million.
what
is worse,
it keeps growing at a surprising speed. if this
trend continues, the world's population
will shoot up to
7,000 million by the
year xx. this is what we call
population explosion.
the rapid development of science and technology is
the
main
cause
of
population
explosion.
we
can
see
that
the
population
has
been
growing
at
a
tremendous
speed
since
the
industrial and agriculture
revolution in 1650, which
raised the
people's standard of living, and the emergence
of modern medicine in 1550, which
lowered the people's
death
rate.
population explosion will result in a lot of such
problems as food shortage,
housing shortage and
unemployment.
it
is
time
that
we
acted
quickly
to
carry
out
the policy of
birth control otherwise, man's survival on
the earth will be
threatened.
it
has
been
estimated
that
a
thousand
years
ago
there
were
less
than
400
million
people
on
earth.
today,
however,
第
3
页
/
总共
10
页
the
world's
population
has
amounted
to
5,000
million.
what
is worse,
it keeps growing at a surprising speed. if this
trend continues, the world's population
will shoot up to
7,000 million by the
year xx. this is what we call
population explosion.
the rapid development of science and technology is
the
main
cause
of
population
explosion.
we
can
see
that
the
population
has
been
growing
at
a
tremendous
speed
since
the
industrial and agriculture
revolution in 1650, which
raised the
people's standard of living, and the emergence
of modern medicine in 1550, which
lowered the people's
death
rate.
population explosion will result in a lot of such
problems as food shortage,
housing shortage and
unemployment.
it
is
time
that
we
acted
quickly
to
carry
out
the policy of
birth control otherwise, man's survival on
the earth will be
threatened.
it
has
been
estimated
that
a
thousand
years
ago
there
were
less
than
400
million
people
on
earth.
today,
however,
the
world's
population
has
amounted
to
5,000
million.
what
is worse,
it keeps growing at a surprising speed. if this
第
4
页
/
总共
10
页
trend continues, the world's population
will shoot up to
7,000 million by the
year xx. this is what we call
population explosion.
the rapid development of science and technology is
the
main
cause
of
population
explosion.
we
can
see
that
the
population
has
been
growing
at
a
tremendous
speed
since
the
industrial and agriculture
revolution in 1650, which
raised the
people's standard of living, and the emergence
of modern medicine in 1550, which
lowered the people's
death
rate.
population explosion will result in a lot of such
problems as food shortage,
housing shortage and
unemployment.
it
is
time
that
we
acted
quickly
to
carry
out
the policy of
birth control otherwise, man's survival on
the earth will be
threatened.
it
has
been
estimated
that
a
thousand
years
ago
there
were
less
than
400
million
people
on
earth.
today,
however,
the
world's
population
has
amounted
to
5,000
million.
what
is worse,
it keeps growing at a surprising speed. if this
trend continues, the world's population
will shoot up to
7,000 million by the
year xx. this is what we call
第
5
页
/
总共
10
页